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Biochemical analyzer rubber seals Description
The rubber seal of the biochemical analyzer is an important part of the biochemical analyzer, which plays the role of sealing and preventing leakage, ensuring the normal operation of the instrument and the accuracy of the test results.
Common types
O-type rubber seal
This is a rubber ring with a circular cross-section, which is widely used in biochemical analyzers. For example, at the junction of components such as the cell, the O-ring rubber seal ensures that liquid does not leak from the connection. It has the advantages of a simple structure, easy installation, and good sealing performance.
Gasket
The rubber seal in the form of a gasket is usually used in the part of the biochemical analyzer that requires a large sealing area, such as the connection between the cover plate of the instrument and the fuselage. Gaskets can be customized to meet specific sealing needs and come in a variety of shapes and sizes to accommodate different mounting positions and sealing requirements.
Special-shaped rubber seals
For some special structures and parts in the biochemical analyzer, special-shaped rubber seals will be used. The shape of these seals is designed according to the specific installation location and sealing requirements and may be irregular shapes such as triangles, trapezoids, etc., to meet specific sealing needs.
| Product name | Biochemical analyzer rubber seals |
| Product material | HNBR, FKM, EPDM, PTFE |
| Hardness (Shore A) | 20 to 90 |
| Applicable temperature °C | -50° to 260° |
| Color | Black, orange, blue, yellow, green, custom |
| Size | Standard/ Custom |
| Advantage | Chemical stability, temperature resistance, low coefficient of friction |
| Application | Biochemical analyzer |
| Certification | ISO: 9001, ISO: 14001, IATF: 16949 |
Material characteristics
Good elasticity
Rubber seals need to have good elasticity, which can be deformed when subjected to a certain pressure, fill the gap of the sealing part, and achieve sealing. In the working process of the biochemical analyzer, the internal liquid flow and the movement of the components will produce a certain pressure on the seal, and good elasticity can ensure that the seal is always tightly sealed.
Chemical stability
In the process of biochemical analysis, various chemical reagents will be contacted, so rubber seals need to have good chemical stability, be able to resist the erosion of common chemical reagents, and will not undergo chemical reaction, dissolution, or deterioration. For example, for some highly acidic or alkaline reagents, rubber seals must be able to maintain stable performance.
Temperature resistance
The biochemical analyzer may generate a certain amount of heat when working, or be used at different ambient temperatures, so the rubber seals need to have a certain temperature resistance and be able to maintain good performance within a certain temperature range. In general, rubber seals need to be able to operate in a wide temperature range of 0°C to 50°C and beyond.
Low coefficient of friction
In the sealing position between some parts that need to move, such as between rotating parts and fixed parts, rubber seals need to have a low coefficient of friction to reduce the frictional resistance of moving parts and ensure the normal operation of the instrument and the service life of the parts.
Application location
Cell
The cell is a component used in the biochemistry analyzer for optical detection, and the liquid in it needs to be kept in a stable state to ensure the accuracy of the detection results. Rubber seals are used to seal between the lid of the cell and the pool body to prevent liquid leakage and interference from outside light.
Reagent storage parts
The reagent storage parts in the biochemistry analyzer need to be well sealed to prevent volatilization, leakage, and contamination of the reagents. Rubber seals are used to seal between the lid of the reagent storage container and the container body, as well as the seal of the connection of the reagent tubing.
Reaction cell
The reaction cell is the place where the sample and the reagent react during the biochemical analysis, and it also needs good sealing performance. Rubber seals are used to seal between the lid and the body of the reaction cell to ensure that the reaction process takes place in a closed environment.
Importance
Ensure the accuracy of the test results
If the seal is not well sealed, it will lead to problems such as liquid leakage and external impurities, which will affect the concentration and purity of the reagent, resulting in deviation from the test results. For example, if a liquid leaks in the cell, the absorbance value of the test will be inaccurate, affecting the final analysis result.
Protect the internal parts of the instrument
There are many precision parts inside the biochemical analyzer, such as optical components, electronic components, etc. Good rubber seals can prevent liquid leakage from corroding and damaging these components, extending the life of the instrument.
Maintain the normal operation of the instrument
The failure of the seal may cause problems such as pressure changes and poor liquid flow inside the instrument, which will affect the normal operation of the instrument. For example, if the seal of the reagent tubing fails, the reagent cannot be accurately delivered to the reaction cell, affecting the analytical process.
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